高速 & 省メモリ perl-xs 版 split モジュール

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  Solaris 8 ai + Perl 5.8.4 で動作確認．
  確かに速い．

% perl t/bench.pl
make test-data
perl split[50000 x 10]LOOP TIME=2
xs split[50000 x 10]LOOP TIME=3
make test-data
perl split[50000 x 50]LOOP TIME=10
xs split[50000 x 50]LOOP TIME=8
make test-data
perl split[50000 x 100]LOOP TIME=21
xs split[50000 x 100]LOOP TIME=14
make test-data
perl split[50000 x 200]LOOP TIME=40
xs split[50000 x 200]LOOP TIME=26